Topology change notification
Enabling topology change notification on a switch
port and then connecting or disconnecting an LLDP-MED endpoint on
that port causes the switch to send an SNMP trap to notify the designated
management stations. The port number included in the trap corresponds
to the internal number the switch maintains for the designated port,
and not the port's external (slot/number) identity. To match
the port's external slot/number to the internal port number appearing
in an SNMP trap, use the walkmib ifDescr command,
as shown in Matching internal port numbers to external slot/port numbers.
